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My Diablo Sport Predator Tuner was shipped to me super fast from Auto Anything! It is easy to use and took very little time to hook up and download. I haven't ran but about one tank of gas on the performance setting so I'm not sure about mileage but I did feel an increase in power.

Not sure which 2008 Ford F-350 Power Programmers & Performance Tuners are right for you? We have over 5642 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:

"The power change is night and day! I am now driving an F-350 sports car! The only disappointment is that I have not noticed any fuel economy improvement." —Ryan H from Saint Paul, MN bought a Hypertech Max Energy Programmer for a 2008 Ford F-350, 6.4L Powerstroke.

"I found that the clean exhaust filter comes on frenquently when it is programmed to stage 2 or 3 Other wise I am impressed with the performance increase." —Gary W from Tuscola, TX bought a Hypertech Max Energy Programmer for a 2008 Ford F-350.

"Unit is easy to install had an issue with gas program download taken care of by Bull Dog, as of now I am testing differant perameters and learning the many things my unit can do. I can definetly feel the increase of power in this heavy vehicle also the shift points are very noticeable. Fuel savings is not yet recognized but unit has not been in long enough. follow directions and you will be up in 30-45 min." —Keith H from Chardon, OH bought a Bully Dog Triple Dog GT Tuner (49-State Legal) for a 2008 Ford F-350, 5.4L V8.

"I had a 2001 F350 Superduty that I paid $600 plus tax for a EGT and Trans temp gauge iinstalled. The Evolution will let me view 4 things at a time for over $100 less and give me 12 things to choose from. It's great!" —Rudy A H from Livingston, TX bought an Edge Evolution Programmer for a 2008 Ford F-350, 6.4L Power Stroke.

"I found the Cortex programer very easy to install and have used it so far to improve fuel mileage. At 65-70 mph freeway, I have seen an improvement from 15 mpg to 18 mpg. I plan to make some intake and exhaust mopdifications next." —John F from Waller, TX bought a Superchips Cortex Programmer for a 2008 Ford F-350, 6.4L Power Stroke.